JPH09310393A - Handle device for low tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a handle device, which is constituted so that an electrically- driven mechanism is operated by working a handle and in which the handle is not rotated when a shaft is turned by a motor. SOLUTION: A drive mechanism for a shaft 44 consisting of a motor 20, a worm wheel 24, an internal gear 30, partly toothless gears 34, 36, etc., is installed into casings 18a, 18b on the side faces of a low tank. A valve is connected at the front end of the shaft 44 through a chain, etc. A handle 50 is not coupled directly with the shaft 44, and a limit switch for driving the motor turned on-off by the handle 50 is mounted. When the switch is turned on, the shaft 44 is rotated, and water is flowed out into a stool from the low tank.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handle device for a low tank for supplying flush water to a toilet bowl, and more particularly to a handle device for a low tank configured to start water outflow from the raw tank by operating a switch.

[0002]

2. Description of the Related Art A conventional example of a handle device for a low tank of this type is disclosed in Japanese Patent Publication No. 1-121818. In this conventional low tank handle device, a thin rod-shaped second shaft is slid with respect to a cylindrical first shaft for pulling up a valve (a water discharge control valve at the bottom of the low tank) rotated by a manual handle. The valve is freely fitted inside, and the second shaft is rotated by a motor outside the low tank, and the valve can be pulled up by the rotation of the second shaft.

In the handle device disclosed in Japanese Patent Publication No. 1-18218, a case containing a motor is provided on the outer surface of the low tank, and a shaft penetrating the side wall of the low tank is inserted into the case. An operating piece for manually rotating the shaft is arranged on the lower side of the case.

Japanese Patent Publication No. 1-18 having such an operation piece
The handle device of the low tank disclosed in Japanese Patent No. 218 is remarkably inconvenient because it has a remarkably different external shape from that of a manually-operated handle that has been widely used in the past.

Therefore, the applicant of the present invention has filed in Japanese Utility Model Publication No. 6-7647.
In Japanese Patent Publication No. 3, the handle and the motor are configured to drive a common shaft, and the shaft can be rotated by the motor by operating an electric switch, and the handle can be rotated by hand. A low tank handle device was proposed.

FIG. 8 is an exploded perspective view showing a handle device for a low tank according to Japanese Utility Model Laid-Open No. 6-76473.

A casing 113 of the handle device is installed outside the side wall of the low tank 10, and a motor 114 and a gear mechanism 116 are built therein. A handle 118 is provided outside the casing 113. The rear portion of the L-shaped shaft 120 is drawn into the casing 113, and the gear mechanism 116 and the handle 118 are connected to the shaft 120 so that they can be rotated by both the motor 114 and the handle 118. A linear body such as a chain or a wire is connected to the tip of the shaft 120.

Lead wires 122 from the motor 114 and various limit switches are drawn out from the casing 113.

The handle device disclosed in Japanese Utility Model Laid-Open No. 6-76473 can automatically discharge the water in the raw tank 10 by operating a push button switch (not shown).
It is also possible to discharge the water by operating the handle 118 as in the conventional manual low tank. This handle 118 releases water by the same manual operation as a low tank handle that has been used for a long time, and the external shape of the handle 118 is the same as the old low tank handle. Even in this case, the water in the raw tank 10 can be discharged by manual operation without frustration.

[0010]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
The handle device disclosed in Japanese Patent No. 73 is convenient in that both electric toilet cleaning by operating an electric switch and manual toilet cleaning by operating a handle can be performed. There are times when you do not notice its existence and the special electric mechanism is not used.

Further, when the electric switch is turned on, the handle 118 also rotates in accordance with the rotation of the motor 114, which may surprise an unfamiliar user.

It is an object of the present invention to provide a handle device for a low tank which is constructed so that an electric mechanism is operated by operating the handle.

It is another object of the present invention to provide a handle device for a low tank in which the handle does not rotate when the shaft is rotated by the motor.

[0014]

A handle device for a low tank according to the present invention includes a casing arranged outside the side wall of the low tank, a tip side of which is located inside the row tank, and a linear body for pulling up the valve is provided on the tip side. A handle device for a low tank, comprising: a shaft connected to the rear end side of the casing; and a shaft electric device arranged in the casing for rotating the shaft,
A low tank handle-shaped handle is provided outside the casing, and a switch for operating the shaft electric device is installed so as to be operated by the handle.

In the low tank handle device of the present invention, the shaft electric device is operated when the handle is turned. The handle is not directly connected to the shaft, and the handle does not rotate when the shaft is rotated by the electric device.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view of a handle device for a low tank according to an embodiment, FIG. 2 is a side view with a housing cover removed, and FIGS. 3 and 4 are perspective views showing the structure of a handle-type switch. 5 is an explanatory view of the operation of the gear mechanism, and FIGS. 6 and 7 are explanatory views showing the internal mechanism.

The side wall of the raw tank 10 has an opening 12 (second
(Fig.) Is provided, a column 14 with a screw is inserted into the opening 12, and a nut 16 is screwed into the column 14 with a screw to fix the handle device to the raw tank 10. The threaded column 14 is provided so as to project from the back surface of the plate 18a of the casing 18, and a male screw is engraved on the outer peripheral surface thereof.

The motor 20 is mounted in the casing cover 18b, and the worm 22 fixed to the drive shaft of the motor 20 meshes with the worm wheel 24. A pinion 26 integral with the worm wheel 24 is pivotally supported on the plate 18a via a pivot 28. This pinion 26
Engages with the teeth of the inter gear 30 having teeth all around. The intergear 30, the drive side toothless gear 32 integral therewith, and the disc cam 33 are pivotally supported on the housing plate 18a by a pivot shaft 34. 32a
Indicates a toothless portion of the toothless gear 32 in which no tooth is provided. The pivots 28 and 34 are provided so as to project from the plate 18a.

A driven cam having a tooth part 36, which has teeth capable of meshing with the teeth of the drive gear part 32, is integrally formed with a disc cam 38. The rear end of the shaft 44 is coaxially attached to the gear 36. A small pin 42 is projectingly provided near the peripheral edge of the gear 36. This small pin 4
An upper end of a link 46, which will be described later, is locked at 2.

The shaft 44 has its tip end side projecting toward the front side of the plate 18a through the threaded column 14. The tip side of the shaft 44 is L-shaped and is connected to the valve of the low tank via a chain or the like.

The casing cover 18b is provided with a spindle insertion hole 48 (see FIG. 3).
A handle 50 is arranged on the front surface side of 8. A square concave hole 54 provided in the shaft center portion of the boss portion 52 of the handle 50 is externally fitted to the tip of the spindle 56. As shown in FIG. 3, the tip end 56a of the spindle 56 is also square, and the turning force of the handle 50 is applied to the spindle 56 by inserting the square tip 56a into the square recess 54.
Is transmitted to

The rear end portion 56b of the spindle 56 has a non-circular shape with both side surfaces cut off. This rear end portion 56b
The non-circular center hole 58a of the ring plate 58 and the non-circular opening 60a of the base end portion of the lever 60 are externally fitted to the ring plate 58 and the lever 60 at all times.
It is constructed so as to rotate integrally with 6. This lever 6
A lever arm 62 projects from 0. The lever arm 62 is for pushing down a link arm 64 described later.

As shown in FIG. 3, the outer peripheral surface of the ring plate 58 is provided with notches 66 extending in the arc direction, and step portions 68 at both ends in the circumferential direction of the notches 66,
70 engages with the convex portions 76, 78 of the sliders 72, 74 held by the casing cover 18b.

Two annular portions 79 and 80 are coaxially projected from the inner surface of the cover 18b, and the circular groove 8 between them is provided.
The sliders 72 and 74 are inserted in the unit 2. The annular portion 80 has an annular shape, while the annular portion 79 has a C shape. Each of the sliders 72 and 74 has an arc shape, and is slidably movable in the groove 82. The sliders 72 and 74 are connected to each other by a tension coil spring 84.

From the outer circumference of the sliders 72, 74, a stepped portion 86,
88 is provided so as to project, and the stepped portions 86, 88 are in contact with the end portions 79 a, 79 b of the C-shaped annular portion 79.

Step 6 of the notch 66 of the ring plate 58
Since 8, 70 are engaged with the convex portions 76, 78 of the sliders 72, 74, when the spindle 56 and the ring plate 40 are rotated in the clockwise direction in FIG. The child 72 moves in the groove 82 in the clockwise direction while stretching the tension coil spring 84. When the force applied to the handle 50 is released, the spring 84
The pulling force of the slider 72 causes the stepped portion 86 of the slider 72 to end 79a.
The handle 50 returns to the original state where it abuts on the handlebar 50, and the handle 50 also returns to the original posture. When the handle 50 rotates counterclockwise in FIG. 3, the step 70 pushes the protrusion 78 to pull the slider 74 counterclockwise, and the slider 74 stretches the spring 84 to rotate counterclockwise. Move in the groove 82. Then, when the force applied to the handle 50 is released,
The pulling force of the spring 84 returns the slider 74 to the original position (the position where the step portion 88 abuts against the end portion 79b), and the handle 5
0 also returns to the original posture.

As shown in FIG. 4, the ring plate 58
The cam 90 is provided integrally with the cam projection 90a.
Limit switches 92 and 94 whose contacts are closed by are arranged on both upper and lower sides of the cam 90. When the cam 90 rotates clockwise from the state of FIG. 4, the cam projection 90a closes the limit switch 92, and when the cam 90 rotates counterclockwise, the cam projection 90a closes the limit switch 94. . O of these limit switches 92 and 94
The motor 20 is operated by N.

As shown in FIG. 5, a recess 96 is formed in a part of the outer peripheral surface of the disc cam 33 integral with the intergear 30.
Is provided. ON / OFF by this cam 33
A limit switch 98 is attached to the casing plate 18a. As shown in FIG. 5A, when the recess 96 faces the limit switch 98, the limit switch 98 is OFF. When the cam 33 rotates as shown in FIG. 5 (b), the limit switch 98 is turned on.

A limit switch 100 is provided on the outer peripheral surface of a disk cam 38 which is integral with the driven toothless gear 36, and is turned on and off by a projection 38a of the cam 38.

Circular opening 1 at the base end of the link arm 64
Reference numeral 04 is rotatably fitted to the tip of the boss portion 106 protruding from the plate 18a. A thin shaft portion 56c (FIG. 3) at the rear end of the spindle 64 is rotatably inserted into a recessed hole 106a in the front end surface of the boss portion 106. The tip of the link arm 56 and the lower end of the link 46 are connected by a connecting pin 108. The small hole 110 at the upper end of the link 46 is engaged with the small pin 42 of the driven side partly toothless gear 36.

The protruding portion 62a of the lever arm 62 of the lever 60 extends above the link arm 64,
When the lever 60 rotates counterclockwise in FIG. 1, the link arm 64 is pushed down and the link 46 is pulled down.
The driven toothless gear 36 rotates in the θ direction in FIG. A tension coil spring 112 is installed between the link 46 and the casing cover 18b so that the link 46 can be pulled upward.

Limit switches 92, 94, 98, 10
0 and a lead wire (not shown) connected to the motor 20 is pulled out to the outside of the casing 18, and a controller (not shown)
It is connected to the. The controller has a built-in power supply circuit and control circuit, and has limit switches 92, 94, 9
The operation of the motor 20 is controlled based on the signals from 8, 100.

The operation of the handle device of the low tank thus constructed will be described below.

In the state where water is stored in the raw tank 10, the L-shaped tip of the shaft 44 faces downward, and the chain and the like are slackened. In this case, the valve at the bottom of the raw tank closes the flush water outlet of the raw tank 10.

In this water storage state, the toothless gear 32,
36 is in the state shown in FIG. 5 (a). That is, the toothless portion 32 a of the drive side toothless gear 32 faces the driven side toothless gear 36. In the driven toothless gear 36, one end side of the tooth row faces the toothless portion 32a. The limit switches 92 and 94 are in the state shown in FIG.
Both are switched off.

In this state, when the handle 50 is turned clockwise (in this embodiment, the "large" washing direction) in FIG. 1, the limit switch 92 is turned on and the motor 20 is rotated. Then, the warm wheel 24 and the pinion 2
6, rotational power is transmitted in the order of the inter gear 30, the drive side toothless gear 32, and the teeth of the toothless gear 32 are driven side toothless gear 3
Mesh with 6 teeth.

By the way, when the inter gear 30 and the disc cam 33 integral therewith rotate even a little, FIG. 5 (b)
As shown in, the recess 96 moves away from the limit switch 98, and the limit switch 98 is turned on. When the limit switch 98 is turned on, the rotation of the motor 20 continues. Therefore, even if the handle 50 is turned by hand and then immediately released from the handle 50 (that is, even if the limit switch 92 is thereby turned off), the limit switch 98 is turned on, so that the power source supplies the motor 2 to the motor 2.
The electric power is supplied to 0, and the rotation of the motor 20 is continued.

Incidentally, as the handle 50 rotates clockwise, the slider 72 (FIG. 3) also moves along the ring plate 58.
And moves in the groove 82 in the same direction. The spring 84 is stretched as the slider 72 moves. The stretched spring 84 serves as a power source for returning and rotating the handle 50 when the hand is released from the handle 50.

As the motor 20 continues to rotate, the tooth-missing gears 32 and 36 mesh with each other as shown in FIG. 5B, and the tooth-missing gear 36 rotates. The shaft 44 rotates with the rotation of the partly tooth-missing gear 36, the chain is pulled up, the float valve is raised, and water is discharged from the low tank 10 toward the toilet bowl.

From FIG. 5 (b) to FIG. 5 (c),
The rotation of the motor 20 continues, the partly tooth-missing gear 36 is further rotated clockwise, and the state shown in FIG. 5C is reached. In the state of FIG. 5 (c), the rearmost side of the tooth row of the tooth-chipped gear 36 is engaged with the teeth of the drive-side tooth-chipped gear 32, and the driven-side tooth-chipped gear 36 no longer rotates. It is in a state where it cannot be done. At this time, the limit switch 100 comes into contact with the cam protrusion 38a and is turned on. When the limit switch 100 is turned on, the controller 5
The second timer is turned on, and the motor 20 stops for 5 seconds. As a result, the shaft 44 is kept in a state of being rotated by about 90 ° (chain pulling state) for 5 seconds, during which the valve at the bottom of the raw tank is opened and the water in the raw tank is discharged.

The driven side partly toothless gear 36 is shown in FIG. 5 (a).
With the clockwise rotation shown in (c) to (c), the link 4
6 is pushed downward via the small pin 42. When the link 46 moves downward, the coil spring 112 is stretched. The stretched tension force of the coil spring 112 serves as a power source for the return rotation of the driven side partly toothless gear 36 shown in FIG.

When the 5-second timer times out, the motor 20 starts to rotate again, and finally reaches the state shown in FIG. 5 (e) through FIG. 5 (d). When the rearmost part of the tooth row of the partly tooth-missing gear 32 is separated from the rearmost part of the tooth row of the partly tooth-missing gear 36 in FIGS.
Thus, as shown in FIG. 5 (e), the driven toothless gear 36 is allowed to rotate in the counterclockwise direction. As described above, the coil spring 112 biases the driven-side tooth-chipped gear 36 via the link 46, so that as soon as the tooth rows of the tooth-chipped gears 32 and 36 are disengaged, the driven-side tooth-chipped gear 36 is released. Rotates counterclockwise in FIG. As a result, the shaft 44 returns to the state shown in FIG. 2 (the state where the arm portion hangs down), and the tooth-chipped gear 36 returns to the state shown in FIG. 5 (a).

In the state of FIG. 5 (e), the limit switch 98 faces the recess 96 and its contact is open. Therefore, the motor 20 is stopped in the state shown in FIG. 5E and the state shown in FIG. 5E.

The above operation is the case where the handle 50 is turned to the "large" washing side (clockwise direction in FIG. 1), but when the handle 50 is turned to the opposite "small" washing side, Limit switch 94 is turned on by handle 50
Thus, the motor 20 rotates. The rotary operation of the gear and shaft 44 in this case is the same as in the "large" wash. However, in this case, when the limit switch 100 is turned on in FIG. 5C, the 1-second timer is started instead of the 5-second timer, and the motor 20 is stopped for 1 second. During this one second, water will be discharged from the raw tank 10, and a small amount of cleaning water will be supplied to the toilet bowl, and a "small" cleaning of the toilet bowl will be performed. When the one second timer times out, the motor 20 rotates again and the fifth
It returns to the state of FIG. 5 (a) through FIG.

The above operation is for releasing the water in the raw tank 10 by turning on the limit switch 92 or 94 with the handle 50. However, the manual operation of the handle 50 also allows the raw tank 10 to be operated.
Most of the water inside can be released. That is, when the handle 50 is turned about 30 ° in the “large” washing direction, the overhanging portion 62 a of the lever arm 62 contacts the link arm 56.
Then, when the handle 50 is rotated further than that, the link 46 is pulled down via the link arm 56, the driven side partly toothless gear 36 is rotated via the small pin 42, and the shaft 44 is rotated. As a result, the linear body is pulled up, and the water in the raw tank 10 is discharged toward the toilet bowl according to a normal manual operation. At this time, the toothless gear 3
2, 36 do not mesh with each other at all, and the driven side toothless gear 3
6 freely rotates from the drive side toothless gear 32.

As described above, the handle device can automatically discharge the water in the raw tank 10 by turning the handle 50 to the right or left, and the handle 50 can be released like the conventional manual type low tank. It is also possible to discharge the water manually by making a large rotation operation.

The handle 50 is exactly the same as a low tank handle that has been used for a long time, and the external shape of the handle 50 is the same as the old low tank handle. ,
It is possible to wash the toilet by discharging the water in the low tank 10 both electrically and manually without frustration.

[0049]

As described above, the electric handle device for the low tank according to the present invention can turn on the switch to cause water to flow out by the same operation as the handle of the conventional low tank which has been used conventionally. . Therefore, even the first user of the apparatus can wash the toilet bowl without being confused. Also, the handle does not rotate when water is automatically discharged by switch operation,
It also eliminates the possibility of astonishing the user and causing the user to mistakenly recognize the failure.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a device according to an embodiment.

FIG. 2 is a side view of a main part inside the device according to the embodiment.

FIG. 3 is an exploded perspective view of a handle portion of the device according to the embodiment.

FIG. 4 is a perspective view showing a handlebar switch mechanism of the device according to the embodiment.

FIG. 5 is an operation explanatory view of the device according to the embodiment.

FIG. 6 is a cross-sectional view showing the inside of the device according to the embodiment.

FIG. 7 is an elevational view showing the configuration inside the casing cover of the device according to the embodiment.

FIG. 8 is an exploded perspective view of a conventional device.

[Explanation of symbols]

 10 Low Tank 20 Motor 22 Worm 24 Worm Wheel 30 Intergear 32 Drive Side Toothless Gear 33 Cam 36 Driven Toothless Gear 46 Link 50 Handle 56 Spindle 60 Lever 62 Lever Arm 64 Link Arm 72, 74 Slider 90 Cam 92, 94, 98, 100 limit switches

Claims (1)

[Claims] 1. A casing disposed outside a side wall of a low tank, a front end side of which is located inside the low tank, a linear body for valve pulling up is connected to the front end side, and a rear end side is disposed inside the casing. And a shaft electric device for rotating the shaft arranged in the casing, wherein a handle in the form of a low tank handle is provided outside the casing. A handle device for a low tank, wherein a switch for operating the device is installed so as to be operated by the handle.